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Debounce resize events

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Kovid Goyal 2014-01-23 16:22:53 +05:30
parent acb1742432
commit 368badcb85
1 changed files with 11 additions and 2 deletions
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13
src/calibre/gui2/tweak_book/diff.py
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@ -13,7 +13,7 @@ from difflib import SequenceMatcher
from future_builtins import zip from future_builtins import zip
from PyQt4.Qt import ( from PyQt4.Qt import (
QSplitter, QApplication, QPlainTextDocumentLayout, QTextDocument, QSplitter, QApplication, QPlainTextDocumentLayout, QTextDocument, QTimer,
QTextCursor, QTextCharFormat, Qt, QRect, QPainter, QPalette, QPen, QTextCursor, QTextCharFormat, Qt, QRect, QPainter, QPalette, QPen,
QBrush, QColor, QTextLayout, QCursor, QFont, QSplitterHandle, QStyle, QBrush, QColor, QTextLayout, QCursor, QFont, QSplitterHandle, QStyle,
QPainterPath, QHBoxLayout, QWidget, QScrollBar, QEventLoop, pyqtSignal) QPainterPath, QHBoxLayout, QWidget, QScrollBar, QEventLoop, pyqtSignal)
@ -613,13 +613,22 @@ class DiffView(QWidget):
l.addWidget(self.scrollbar) l.addWidget(self.scrollbar)
self.syncing = False self.syncing = False
self.bars = [] self.bars = []
self.resize_timer = QTimer(self)
self.resize_timer.setSingleShot(True)
self.resize_timer.timeout.connect(self.resize_debounced)
for i, bar in enumerate((self.scrollbar, self.view.left.verticalScrollBar(), self.view.right.verticalScrollBar())): for i, bar in enumerate((self.scrollbar, self.view.left.verticalScrollBar(), self.view.right.verticalScrollBar())):
self.bars.append(bar) self.bars.append(bar)
bar.valueChanged[int].connect(partial(self.scrolled, i)) bar.valueChanged[int].connect(partial(self.scrolled, i))
self.view.left.resized.connect(self.adjust_range) self.view.left.resized.connect(self.resized)
for v in self.view.left, self.view.right, self.view.handle(1): for v in self.view.left, self.view.right, self.view.handle(1):
v.wheel_event.connect(self.scrollbar.wheelEvent) v.wheel_event.connect(self.scrollbar.wheelEvent)
def resized(self):
self.resize_timer.start(100)
def resize_debounced(self):
self.adjust_range()
@property @property
def syncpos(self): def syncpos(self):
return self.scrollbar.value() + int(self.scrollbar.pageStep() * self.SYNC_POSITION) return self.scrollbar.value() + int(self.scrollbar.pageStep() * self.SYNC_POSITION)